Switch to using the new Link Doctor API.

chrome/renderer/net/net_error_helper.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/renderer/net/net_error_helper.h"
 
 #include <string>
 
+#include "base/i18n/rtl.h"
 #include "base/json/json_writer.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
-#include "chrome/common/localized_error.h"
 #include "chrome/common/net/net_error_info.h"
 #include "chrome/common/render_messages.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/url_constants.h"
 #include "content/public/renderer/content_renderer_client.h"
 #include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_thread.h"
 #include "content/public/renderer/render_view.h"
 #include "content/public/renderer/resource_fetcher.h"
 #include "grit/renderer_resources.h"
@@ skipping 14 matching lines @@
 using base::JSONWriter;
 using chrome_common_net::DnsProbeStatus;
 using chrome_common_net::DnsProbeStatusToString;
 using content::RenderFrame;
 using content::RenderFrameObserver;
 using content::RenderThread;
 using content::kUnreachableWebDataURL;
 
 namespace {
 
-// Number of seconds to wait for the alternate error page server.  If it takes
-// too long, just use the local error page.
-static const int kAlterErrorPageFetchTimeoutSec = 3000;
+// Number of seconds to wait for the Link Doctor FixURL service to return
+// suggestions.  If it takes too long, just use the local error page.
+static const int kLinkDoctorFetchTimeoutSec = 3;
 
 NetErrorHelperCore::PageType GetLoadingPageType(const blink::WebFrame* frame) {
   GURL url = frame->provisionalDataSource()->request().url();
   if (!url.is_valid() || url.spec() != kUnreachableWebDataURL)
     return NetErrorHelperCore::NON_ERROR_PAGE;
   return NetErrorHelperCore::ERROR_PAGE;
 }
 
 NetErrorHelperCore::FrameType GetFrameType(const blink::WebFrame* frame) {
   if (!frame->parent())
     return NetErrorHelperCore::MAIN_FRAME;
   return NetErrorHelperCore::SUB_FRAME;
 }
 
+// Copied from localized_error.cc.
+// TODO(mmenke):  Share code?
+bool LocaleIsRTL() {
+#if defined(TOOLKIT_GTK)
+  // base::i18n::IsRTL() uses the GTK text direction, which doesn't work within
+  // the renderer sandbox.
+  return base::i18n::ICUIsRTL();
+#else
+  return base::i18n::IsRTL();
+#endif
+}
+
 }  // namespace
 
 NetErrorHelper::NetErrorHelper(RenderFrame* render_view)
     : RenderFrameObserver(render_view),
       content::RenderFrameObserverTracker<NetErrorHelper>(render_view),
       core_(this) {
 }
 
 NetErrorHelper::~NetErrorHelper() {
 }
@@ skipping 15 matching lines @@
 
 void NetErrorHelper::OnStop() {
   core_.OnStop();
 }
 
 bool NetErrorHelper::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
 
   IPC_BEGIN_MESSAGE_MAP(NetErrorHelper, message)
     IPC_MESSAGE_HANDLER(ChromeViewMsg_NetErrorInfo, OnNetErrorInfo)
-    IPC_MESSAGE_HANDLER(ChromeViewMsg_SetAltErrorPageURL, OnSetAltErrorPageURL);
+    IPC_MESSAGE_HANDLER(ChromeViewMsg_SetLinkDoctorInfo, OnSetLinkDoctorInfo);
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
   return handled;
 }
 
 void NetErrorHelper::GetErrorHTML(
     blink::WebFrame* frame,
     const blink::WebURLError& error,
     bool is_failed_post,
     std::string* error_html) {
   core_.GetErrorHTML(GetFrameType(frame), error, is_failed_post, error_html);
 }
 
-void NetErrorHelper::GenerateLocalizedErrorPage(const blink::WebURLError& error,
-                                                bool is_failed_post,
-                                                std::string* error_html) const {
+void NetErrorHelper::GenerateLocalizedErrorPage(
+    const blink::WebURLError& error,
+    bool is_failed_post,
+    scoped_ptr<LocalizedError::ErrorPageParams> params,
+    std::string* error_html) const {
   error_html->clear();
 
   int resource_id = IDR_NET_ERROR_HTML;
   const base::StringPiece template_html(
       ResourceBundle::GetSharedInstance().GetRawDataResource(resource_id));
   if (template_html.empty()) {
     NOTREACHED() << "unable to load template.";
   } else {
     base::DictionaryValue error_strings;
     LocalizedError::GetStrings(error.reason, error.domain.utf8(),
                                error.unreachableURL, is_failed_post,
                                RenderThread::Get()->GetLocale(),
                                render_frame()->GetRenderView()->
                                    GetAcceptLanguages(),
-                               &error_strings);
+                               params.Pass(), &error_strings);
     // "t" is the id of the template's root node.
     *error_html = webui::GetTemplatesHtml(template_html, &error_strings, "t");
   }
 }
 
 void NetErrorHelper::LoadErrorPageInMainFrame(const std::string& html,
                                               const GURL& failed_url) {
   blink::WebView* web_view = render_frame()->GetRenderView()->GetWebView();
   if (!web_view)
     return;
   blink::WebFrame* frame = web_view->mainFrame();
   frame->loadHTMLString(html, GURL(kUnreachableWebDataURL), failed_url, true);
 }
 
 void NetErrorHelper::UpdateErrorPage(const blink::WebURLError& error,
                                      bool is_failed_post) {
   base::DictionaryValue error_strings;
   LocalizedError::GetStrings(error.reason,
                              error.domain.utf8(),
                              error.unreachableURL,
                              is_failed_post,
                              RenderThread::Get()->GetLocale(),
                              render_frame()->GetRenderView()->
                                  GetAcceptLanguages(),
+                             scoped_ptr<LocalizedError::ErrorPageParams>(),
                              &error_strings);
 
   std::string json;
   JSONWriter::Write(&error_strings, &json);
 
   std::string js = "if (window.updateForDnsProbe) "
                    "updateForDnsProbe(" + json + ");";
   base::string16 js16;
   if (!base::UTF8ToUTF16(js.c_str(), js.length(), &js16)) {
     NOTREACHED();
     return;
   }
 
   base::string16 frame_xpath;
   render_frame()->GetRenderView()->EvaluateScript(frame_xpath, js16, 0, false);
 }
 
-void NetErrorHelper::FetchErrorPage(const GURL& url) {
-  DCHECK(!alt_error_page_fetcher_.get());
+void NetErrorHelper::FetchLinkDoctorSuggestions(
+    const GURL& link_doctor_url,
+    const std::string& link_doctor_url_request_body) {
+  DCHECK(!link_doctor_fetcher_.get());
 
   blink::WebView* web_view = render_frame()->GetRenderView()->GetWebView();
   if (!web_view)
     return;
   blink::WebFrame* frame = web_view->mainFrame();
 
-  alt_error_page_fetcher_.reset(content::ResourceFetcher::Create(url));
-
-  alt_error_page_fetcher_->Start(
+  link_doctor_fetcher_.reset(
+      content::ResourceFetcher::Create(link_doctor_url));
+  link_doctor_fetcher_->SetMethod("POST");
+  link_doctor_fetcher_->SetBody(link_doctor_url_request_body);
+  link_doctor_fetcher_->SetHeader("Content-Type", "application/json");
+  link_doctor_fetcher_->Start(
       frame, blink::WebURLRequest::TargetIsMainFrame,
-      base::Bind(&NetErrorHelper::OnAlternateErrorPageRetrieved,
+      base::Bind(&NetErrorHelper::OnLinkDoctorSuggestionsFetched,
                      base::Unretained(this)));
 
-  alt_error_page_fetcher_->SetTimeout(
-      base::TimeDelta::FromSeconds(kAlterErrorPageFetchTimeoutSec));
+  link_doctor_fetcher_->SetTimeout(
+      base::TimeDelta::FromSeconds(kLinkDoctorFetchTimeoutSec));
 }
 
-void NetErrorHelper::CancelFetchErrorPage() {
-  alt_error_page_fetcher_.reset();
+void NetErrorHelper::CancelFetchLinkDoctorSuggestions() {
+  link_doctor_fetcher_.reset();
 }
 
 void NetErrorHelper::OnNetErrorInfo(int status_num) {
   DCHECK(status_num >= 0 && status_num < chrome_common_net::DNS_PROBE_MAX);
 
   DVLOG(1) << "Received status " << DnsProbeStatusToString(status_num);
 
   core_.OnNetErrorInfo(static_cast<DnsProbeStatus>(status_num));
 }
 
-void NetErrorHelper::OnSetAltErrorPageURL(const GURL& alt_error_page_url) {
-  core_.set_alt_error_page_url(alt_error_page_url);
+void NetErrorHelper::OnSetLinkDoctorInfo(const GURL& link_doctor_url,
+                                         const std::string& language,
+                                         const std::string& country_code,
+                                         const std::string& api_key,
+                                         const GURL& search_url) {
+  core_.OnSetLinkDoctorInfo(link_doctor_url, language, country_code, api_key,
+                            search_url);
 }
 
-void NetErrorHelper::OnAlternateErrorPageRetrieved(
+void NetErrorHelper::OnLinkDoctorSuggestionsFetched(
     const blink::WebURLResponse& response,
     const std::string& data) {
   // The fetcher may only be deleted after |data| is passed to |core_|.  Move
   // it to a temporary to prevent any potential re-entrancy issues.
   scoped_ptr<content::ResourceFetcher> fetcher(
-      alt_error_page_fetcher_.release());
+      link_doctor_fetcher_.release());
   if (!response.isNull() && response.httpStatusCode() == 200) {
-    core_.OnAlternateErrorPageFetched(data);
+    core_.OnLinkDoctorSuggestionsFetched(
+        data, render_frame()->GetRenderView()->GetAcceptLanguages(),
+        LocaleIsRTL());
   } else {
-    core_.OnAlternateErrorPageFetched("");
+    core_.OnLinkDoctorSuggestionsFetched(
+        "", render_frame()->GetRenderView()->GetAcceptLanguages(),
+        LocaleIsRTL());
   }
 }